Add Yahoo as a preferred source to see more of our stories on Google. Pumas are now preying on Patagonia's coastal penguin colonies at high rates, raising new conservation concerns. Rising puma ...

Add Yahoo as a preferred source to see more of our stories on Google. Reintroducing keystone predator species can have a near-miraculous restorative effect on ecosystems. This is what I would remind a ...

Penguins in one corner of Argentina now have a new land-based threat to worry about: pumas. A study in the journal Proceedings of the Royal Society B finds that in Monte Leon National Park in ...

Lead author Melisa Lera, a postgraduate student at WildCRU, Oxford University said, "The number of carcasses showing signs of predation we found in the colony is overwhelming, and the fact that they ...

Large seabird colonies have a surrounding boundary known as Ashmole's halo, where food sources are depleted, forcing the birds to travel farther to gather the food they need. The reason seems ...

A natural experiment in a national park in Patagonia shows how the return of a large predator can reshape an ecosystem. Long absent from Argentinian Patagonia due to over-hunting, pumas have returned ...

The color of penguin poop, as seen from space, is offering a new window into how the ecology and the environment of Antarctica are changing over time. Adélie penguins are one of the most abundant ...

Reintroducing keystone predator species can have a near-miraculous restorative effect on ecosystems. This is what I would remind a Patagonian penguin who is feeling a bit down about his whole family ...

Along South America's windswept southern coast, Magellanic penguins have spent decades nesting in relative safety. For much of the twentieth century, sheep ranching dominated the region, and pumas ...